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# Copyright 2023 Red Hat.
# All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
import copy
import datetime
import logging
from osc_lib.command import command
from osc_lib import exceptions
from osc_lib import utils
from openstackclient.i18n import _
LOG = logging.getLogger(__name__)
def _format_image_cache(cached_images):
"""Format image cache to make it more consistent with OSC operations."""
image_list = []
for item in cached_images:
if item == "cached_images":
for image in cached_images[item]:
image_obj = copy.deepcopy(image)
image_obj['state'] = 'cached'
image_obj['last_accessed'] = (
datetime.datetime.utcfromtimestamp(
image['last_accessed']
).isoformat()
)
image_obj['last_modified'] = (
datetime.datetime.utcfromtimestamp(
image['last_modified']
).isoformat()
)
image_list.append(image_obj)
elif item == "queued_images":
for image in cached_images[item]:
image = {'image_id': image}
image.update(
{
'state': 'queued',
'last_accessed': 'N/A',
'last_modified': 'N/A',
'size': 'N/A',
'hits': 'N/A',
}
)
image_list.append(image)
return image_list
class ListCachedImage(command.Lister):
_description = _("Get Cache State")
def get_parser(self, prog_name):
parser = super().get_parser(prog_name)
return parser
def take_action(self, parsed_args):
image_client = self.app.client_manager.image
# List of Cache data received
data = _format_image_cache(dict(image_client.get_image_cache()))
columns = [
'image_id',
'state',
'last_accessed',
'last_modified',
'size',
'hits',
]
column_headers = [
"ID",
"State",
"Last Accessed (UTC)",
"Last Modified (UTC)",
"Size",
"Hits",
]
return (
column_headers,
(
utils.get_dict_properties(
image,
columns,
)
for image in data
),
)
class QueueCachedImage(command.Command):
_description = _("Queue image(s) for caching.")
def get_parser(self, prog_name):
parser = super().get_parser(prog_name)
parser.add_argument(
"images",
metavar="<image>",
nargs="+",
help=_("Image to display (name or ID)"),
)
return parser
def take_action(self, parsed_args):
image_client = self.app.client_manager.image
failures = 0
for image in parsed_args.images:
try:
image_obj = image_client.find_image(
image,
ignore_missing=False,
)
image_client.queue_image(image_obj.id)
except Exception as e:
failures += 1
msg = _(
"Failed to queue image with name or "
"ID '%(image)s': %(e)s"
)
LOG.error(msg, {'image': image, 'e': e})
if failures > 0:
total = len(parsed_args.images)
msg = _("Failed to queue %(failures)s of %(total)s images") % {
'failures': failures,
'total': total,
}
raise exceptions.CommandError(msg)
class DeleteCachedImage(command.Command):
_description = _("Delete image(s) from cache")
def get_parser(self, prog_name):
parser = super().get_parser(prog_name)
parser.add_argument(
"images",
metavar="<image>",
nargs="+",
help=_("Image(s) to delete (name or ID)"),
)
return parser
def take_action(self, parsed_args):
failures = 0
image_client = self.app.client_manager.image
for image in parsed_args.images:
try:
image_obj = image_client.find_image(
image,
ignore_missing=False,
)
image_client.cache_delete_image(image_obj.id)
except Exception as e:
failures += 1
msg = _(
"Failed to delete image with name or "
"ID '%(image)s': %(e)s"
)
LOG.error(msg, {'image': image, 'e': e})
if failures > 0:
total = len(parsed_args.images)
msg = _("Failed to delete %(failures)s of %(total)s images.") % {
'failures': failures,
'total': total,
}
raise exceptions.CommandError(msg)
class ClearCachedImage(command.Command):
_description = _("Clear all images from cache, queue or both")
def get_parser(self, prog_name):
parser = super().get_parser(prog_name)
parser.add_argument(
"--cache",
action="store_const",
const="cache",
default="both",
dest="target",
help=_("Clears all the cached images"),
)
parser.add_argument(
"--queue",
action="store_const",
const="queue",
default="both",
dest="target",
help=_("Clears all the queued images"),
)
return parser
def take_action(self, parsed_args):
image_client = self.app.client_manager.image
target = parsed_args.target
try:
image_client.clear_cache(target)
except Exception:
msg = _("Failed to clear image cache")
LOG.error(msg)
raise exceptions.CommandError(msg)
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